Justin Bieber Shows Off Muscles

The Biebs has been spending some extra time at the gym and is offering two tickets to the gun show.

Justin Bieber shared an, uh, up in arms photo of himself, flexing his muscles like a pro wrestler or a bodybuilder or a boxer on Instagram. He's showing off some muscular arms and some big guns, even though it looks kinda funny compared to the rest of his thin frame. Hey, at least we know that the teen is in shape, right?

The 'As Long as You Love Me' singer captioned this "tough" image with: "Jb you think you jacked or sum???"

Jacked? Jacked is right. The fact that he's rocking a white tank, backwards baseball cap and gold jewelry makes him look a little "harder" than we are used to. He's also giving off a super serious stare.